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Results Understanding of oesophageal pathophysiology was low in all cohorts (2.9±0.4 on VAS) and knowledge of HRM and conventional motility studies was even lower (1.9±0.4 and 1.8±0.3, respectively, p=NS). After the tutorial, diagnostic accuracy was significantly higher with HRM Clouse plots than with line tracings (p<0.001). HRM gains in diagnostic accuracy were evident over line tracings (43.1%), particularly with aperistalsis (36.1%), oesophageal body hypomotility (25.8%) and relaxation of the lower oesophageal sphincter (21.0%) (p<0.001 for each comparison); these were maintained at the second evaluation. Gains were independent of academic level (F=0.56, p=0.5) and did not correlate with prior experience of learners (r=−0.18, p=0.29). Learners favoured HRM Clouse plots (80.6%) over line tracings and reported faster interpretation (94.4%).

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